git.rot13.org Git - pxelator/blob - lib/PXElator/httpd.pm

   1 package httpd;
   2
   3 use warnings;
   4 use strict;
   5 use autodie;
   6
   7 =head1 httpd
   8
   9 Start with:
  10
  11   perl -Ilib/PXElator -Mhttpd -e httpd::start
  12
  13 =cut
  14
  15 use Data::Dump qw/dump/;
  16 use Carp qw/confess/;
  17 use File::Slurp;
  18 #use JSON;
  19 use IO::Socket::INET;
  20 use Regexp::Common qw/net/;
  21 use YAML;
  22
  23 our $title;
  24
  25 sub html_start {
  26 qq{
  27 <html>
  28 <head>
  29 <title>$title</title>
  30 </head>
  31 <body>
  32 }}
  33
  34 sub html_end {
  35 qq{
  36 </body>
  37 </html>
  38 }}
  39
  40 our $port = 7777;
  41
  42 use server;
  43 our $debug = server::debug;
  44 our $url = "http://$server::ip:$port";
  45
  46 use html;
  47 our $static_pids;
  48 use progress_bar;
  49 use config;
  50 use client;
  51 use log;
  52 use x11;
  53 use amt;
  54 use daemons;
  55
  56 use kvm;
  57 use browser;
  58 use network;
  59 use ip;
  60 use wireshark;
  61 use syslogd;
  62 use nmap;
  63 use ping;
  64 use wol;
  65
  66 use store;
  67
  68
  69 sub menu {
  70         my $store_url = $url;
  71         $store_url =~ s{:\d+.+}{:28017};
  72 qq{
  73 <div style="font-size: 80%; color: #888">
  74 <a target=pids href=/ >home</a>
  75 |
  76 <a target=server href=/server >server</a>
  77 <a target=server href=/brctl >brctl</a>
  78 <a target=server href=/ip >ip</a>
  79 |
  80 <a target=store href=$store_url >store</a>
  81 <a target=store href=/store/query >query</a>
  82 |
  83 <a target=client href=/nmap >nmap</a>
  84 <a target=client href=/client >client</a>
  85 </div>
  86
  87 }}
  88
  89
  90 sub static {
  91         my ($client,$path) = @_;
  92
  93         my $full = "$server::base_dir/tftp/$path";
  94
  95         return if ! -f $full;
  96
  97         return if $full =~ m{\.ico$};
  98
  99         if ( my $pid = fork ) {
 100                 # parent
 101                 close($client);
 102                 $static_pids->{$pid} = $path;
 103                 return 1;
 104         }
 105
 106         my $type = 'application/octet-stream';
 107         $type = 'text/html' if $path =~ m{\.htm};
 108         $type = 'application/javascript' if $path =~ m{\.js};
 109         $type = 'text/plain' if $path =~ m{\.txt};
 110
 111         my $size = -s $full || return;
 112
 113         print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
 114
 115         open(my $fh, $full);
 116
 117         my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
 118         my $buff;
 119         my $pos = 0;
 120
 121         store::audit( 'static', { pid => $$, path => $path, type => $type, size => $size, block => $block, peerhost => $client->peerhost });
 122
 123         progress_bar::start;
 124
 125         while( my $len = read $fh, $buff, $block ) {
 126                 print $client $buff;
 127                 $client->flush;
 128                 $pos += $len;
 129                 progress_bar::tick( $path, $pos, $size );
 130         }
 131         close($fh);
 132         close($client);
 133
 134         print STDERR "\n";
 135
 136         exit(0);
 137 }
 138
 139 sub ok {
 140         qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n| . html_start() . menu()
 141 }
 142
 143 sub redirect {
 144         my $to = shift;
 145         $to ||= $url;
 146         qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $to\r\n\r\n|
 147 }
 148
 149 sub toggle {
 150         my $v = shift;
 151         return $v ? 0 : 1;
 152 }
 153
 154 sub get_request {
 155         my ( $client, $path, $param ) = @_;
 156
 157         server->refresh;
 158
 159         store::audit( 'request', { path => $path, param => $param, peerhost => $client->peerhost } );
 160
 161         $title = $path;
 162
 163         if ( my $found = static( $client,$path ) ) {
 164                 warn "static $found" if $debug;
 165         } elsif ( $path eq '/' ) {
 166
 167                 my @rows;
 168
 169                 my $debug_proc = '';
 170
 171 warn "XXX pids = ", dump( $daemons::pids );
 172
 173                 foreach my $name ( sort keys %$daemons::pids ) {
 174                         my $pid = $daemons::pids->{$name}; # || next;
 175
 176                         my $html;
 177
 178                         my $proc = "/proc/$pid/status";
 179
 180                         if ( -e $proc ) {
 181                                 $html .= qq|<a href=/start_stop/$name>$pid</a>|;
 182                                 if ( $debug ) {
 183                                         $html .= qq| <a name=$pid href=#proc-$pid>?</a>| if $name->can('start');
 184
 185                                         $debug_proc
 186                                                 .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
 187                                                 .  read_file($proc)
 188                                                 .  qq|</pre>|
 189                                                 ;
 190                                 }
 191
 192                                 my $class = $name;
 193                                 $class =~ s{\.\d+$}{};
 194
 195                                 if ( $class->can('fork_if_active') ) {
 196                                         $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $class->fork_if_active;
 197                                 }
 198
 199                                 if ( $class->can('actions') ) {
 200                                         $html .= qq| <a href=/action/$name/$_>$_</a>| foreach $class->actions;
 201                                 }
 202                         } else {
 203                                 if ( $pid =~ m{^\d+$} ) {
 204                                         $html .= qq|$pid exited |
 205                                 } else {
 206                                         $html .= qq|$pid |;
 207                                 }
 208                                 $html .= qq|<a href=/start_stop/$name>restart</a>| if $pid || $name->can('start');
 209                                 if ( $name->can('fork_actions') ) {
 210                                         $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $name->fork_actions;
 211                                 }
 212                         }
 213
 214                         die "no html generated" unless $html;
 215
 216                         push @rows, ( $name => $html );
 217                 }
 218
 219                 my $below_table = '';
 220
 221                 warn 'static_pids: ', dump( $static_pids ) if $debug;
 222                 foreach my $pid ( keys %$static_pids ) {
 223                         my $path = $static_pids->{$pid};
 224                         if ( -d "/proc/$pid" ) {
 225                                 push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
 226                         } elsif ( $param->{clean_completed_downloads} ) {
 227                                 delete $static_pids->{$pid}
 228                         } else {
 229                                 push @rows, ( $path => "$pid competed" );
 230                                 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
 231                         }
 232                 }
 233
 234                 my $kvm = kvm::next_nr;
 235                 $kvm = qq|<div><a href=/start_stop/kvm?nr=$kvm>create new kvm $kvm</a></div>|;
 236
 237                 print $client ok
 238                         , html::table( 2, @rows )
 239                         , $below_table
 240                         , $kvm
 241                         , html::tabs( log::mac_changes )
 242                         , $debug_proc
 243                         ;
 244
 245         } elsif ( $path =~ m{^/server} ) {
 246                 foreach my $name ( keys %$param ) {
 247                         eval '$server::' . $name . '= $param->{$name}';
 248                 }
 249                 my @table = (
 250                           'debug' => qq|<a href=/our/debug/| . toggle($debug) . qq|>$debug</a>|,
 251                         , 'new_clients' => qq|<input type=text name=new_clients size=3 value="$server::new_clients">|
 252                 );
 253
 254                 foreach my $editable ( 'ip', 'bcast', 'netmask', 'ip_from', 'ip_to', 'domain' ) {
 255                         my $v = eval '$server::' . $editable;
 256                         push @table, ( $editable, qq|<input type=text name=$editable value="$v">| );
 257                 }
 258
 259                 foreach my $readonly ( 'base_dir', 'conf' ) {
 260                         my $v = eval '$server::' . $readonly;
 261                         push @table, ( $readonly, html::tt $v );
 262                 }
 263
 264                 print $client ok
 265                         , qq|<form method=get>|
 266                         , html::table( 2, @table )
 267                         , qq|
 268                                 <input type=submit name=action value=change>
 269                                 </form>
 270                         |
 271                         ;
 272
 273         } elsif ( $path =~ m{^/store/query} ) {
 274                 print $client ok
 275                         , qq|<table>|
 276                 ;
 277                 store::query( sub {
 278                         my $o = shift;
 279                         my $p = delete( $o->{package} );
 280                         delete( $o->{_id} );
 281
 282                         # XXX sigh, dump dies if we don't do this
 283                         delete $o->{$_} foreach ( grep { ! defined $o->{$_} } keys %$o );
 284
 285                         print $client qq|<tr><td>|, join(qq|</td><td>|, map { $p->{$_} } keys %$p ), qq|</td><td><pre>|, dump( $o ), qq|</pre></td></tr>\n|;
 286                 });
 287                 print $client qq|</table>|;
 288
 289         } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
 290                 my $ip = $1;
 291                 $title = $ip if $ip;
 292
 293                 if ( $param->{action} eq 'remove' ) {
 294                         client::remove( $param->{change_ip} );
 295                         print $client redirect("$url/client");
 296                         return;
 297                 } elsif ( $param->{action} eq 'change' ) {
 298                         if ( my $new_ip = client::change_ip( $ip, $param->{change_ip} ) ) {
 299                                 print $client redirect("$url/client#$new_ip");
 300                                 return;
 301                         }
 302                 }
 303
 304                 if ( ! $ip ) {
 305                         my $peer_ip = $client->peerhost;
 306
 307                         my $netmask  = ip::to_int $server::netmask;
 308                         my $network  = ip::to_int($server::ip) & $netmask;
 309                         my $from_int = $network | $server::ip_from;
 310                         my $to_int   = $network | $server::ip_to;
 311                         my $ip_int   = ip::to_int $peer_ip;
 312
 313                         # show edit for clients in our dhcp range
 314                         if ( $ip_int >= $from_int && $ip_int <= $to_int ) {
 315                                 $ip = $peer_ip;
 316                         }
 317                 }
 318
 319                 if ( $ip && $ip ne $server::ip ) {
 320
 321                         my @editable = ( qw/hostname config homepage/ );
 322
 323                         client::conf( $ip, $_ => $param->{$_} ) foreach @editable;
 324
 325                         my $conf = client::all_conf( $ip );
 326                         my $config = delete $conf->{config};
 327
 328                         my $nmap = qq|<a href=/nmap?scan=$ip>nmap</a>|;
 329                         my @table = (
 330                                 'ping' => ping::host($ip)
 331                                         ? qq|<span style="color:green">up</span> $nmap|
 332                                         : qq|<span style="color: red">down</span> <a href=/wol/$ip>wol</a> $nmap|
 333                                         ,
 334                                 'ip' => qq|<input type=text name=change_ip value="$ip" onChange="document.getElementById('old_ip').style.display = '';"><span id=old_ip style="display: none; color: #888;">old: $ip<span>|,
 335                                 'mac' => format::mac( delete $conf->{mac}, 'html' ),
 336                                 'hostname' => qq|<input type=text name=hostname value="| . delete($conf->{hostname}) . qq|">|,
 337                                 'config' => html::select( 'config', $config, config::available ),
 338                                 html::conf( $ip, $conf, 'edit', @editable )
 339                         );
 340
 341                         print $client ok
 342                                 , qq|<form method=get>|
 343                                 , html::table( 2, @table ),
 344                                 , qq|
 345                                         <input type=submit name=action value=change>
 346                                         <input type=submit name=action value=remove style="color: red">
 347                                         </form>|
 348                                 ;
 349
 350                         if ( $config ) {
 351                                 if ( my $for_ip = config::for_ip( $ip ) ) {
 352                                         print $client qq|<h2>config::for_ip</h2>| . html::pre( $for_ip );
 353                                 }
 354                         }
 355
 356                         if ( $conf->{amt} ) {
 357                                 print $client qq|<h2>amt network</h2>|, html::pre_dump( amt::network( $ip ) );
 358                                 print $client qq|<h2>amt log</h2>|, html::pre_dump( amt::log( $ip ) );
 359                         }
 360
 361                 } else {
 362
 363                         print $client ok qq|<h2>Clients on $server::ip</h2>|;
 364
 365                         my @ping;
 366                         if ( my $host = $param->{ping_target} ) {
 367                                 @ping = ( $host );
 368                         } elsif ( $param->{ping} ) {
 369                                 @ping = client::all_ips;
 370                         }
 371
 372                         my $ping = ping::fping( @ping ) if @ping;
 373                         my $arp = client::arp_mac_dev;
 374
 375                         my @clients;
 376
 377                         foreach my $ip ( client::all_ips ) {
 378
 379                                 my $conf = client::all_conf( $ip );
 380                                 my $mac = delete $conf->{mac} || '';
 381                                 my $dev = $arp->{$mac};
 382
 383                                 next unless $dev || $param->{all};
 384
 385                                 my $style
 386                                         = 'style="color:'
 387                                         . ( $ping->{$ip} ? 'green' : 'red' )
 388                                         . '"'
 389                                         if $ping;
 390
 391                                 $style ||= '';
 392                                 my $ip_text = qq|<tt>$ip</tt>|;
 393                                 $ip_text = qq|<tt><b>$ip</b></tt>| if ip::in_dhcp_range($ip);
 394
 395                                 $dev = qq|<tt>$dev</tt>| if $dev;
 396
 397                                 push @clients
 398                                         , qq|<a $style name=$ip target=client href=/client/$ip>$ip_text</a>|
 399                                         , format::mac( $mac => 'html' )
 400                                         , $dev
 401                                         , delete $conf->{hostname}
 402                                         , html::conf( $ip, $conf, 'inline' )
 403                                 ;
 404                         }
 405
 406                         my $all = $param->{all} ? 0 : 1;
 407
 408                         print $client html::table( -5, 'ip', 'mac', qq|<a href="?all=$all">dev</a>|, 'hostname', 'conf', @clients );
 409                         print $client qq|
 410                                 <form method=get>
 411                                 <input type=text   name=ping_target   size=15>
 412                                 <input type=submit name=ping value=ping>
 413                                 </form>
 414                         |;
 415                 }
 416
 417
 418         } elsif ( $path =~ m{^/brctl} ) {
 419
 420                 system 'brctl addif virtual ' . $param->{addif} if $param->{addif};
 421                 system 'brctl delif virtual ' . $param->{delif} if $param->{delif};
 422
 423                 my $in_virtual;
 424
 425                 my @table =
 426                         map {
 427                                 my @c = split(/\t+/,$_,4);
 428                                 if ( $#c == 1 ) {
 429                                         $in_virtual->{ $c[1] }++;
 430                                         @c = ( '', '', '', $c[1] );
 431                                 } else {
 432                                         $in_virtual->{ $c[3] }++;
 433                                 }
 434                                 if ( $c[3] =~ m{\d$} ) {
 435                                         $c[3] = qq|<input type=submit name=delif value=$c[3] style="color:red" title="remove $c[3] from bridge">|;
 436                                 }
 437                                 @c
 438                         } split(/\n/, `brctl show`)
 439                 ;
 440
 441                 my @add_ifs = grep { ! $in_virtual->{$_} && $_ ne 'virtual' } ip::devices_up;
 442
 443                 push @table, ( '', '', '', html::select( 'addif', @add_ifs ) . qq|<input type=submit value=add></form>| );
 444
 445                 print $client ok
 446                         , qq|<form>|
 447                         , html::table( -4, @table )
 448                         , qq|</form>|
 449                         ;
 450
 451
 452         } elsif ( $path =~ m{^/ip/?(\w+)?} ) {
 453                 print $client ok
 454                         , join("\n", map { qq|<a href=/ip/$_>$_</a>| } ( qw/link addr route neigh ntable tunnel maddr mroute xfrm/ ))
 455                         , ip::html( $1 )
 456                         ;
 457         } elsif ( $path =~ m{^/nmap} ) {
 458                 if ( my $scan = $param->{scan} ) {
 459                         nmap::scan( $scan );
 460                         print $client redirect("$url/client#$scan");
 461                 } else {
 462                         print $client ok, qq|
 463                                 <form method=get>
 464                                 <input type=text name=scan>
 465                                 <input type=submit value=scan>
 466                                 </form>
 467                         |;
 468                 }
 469         } elsif ( $path =~ m{^/wol/(\S+)} ) {
 470                 print $client redirect( "$url/client/$1" ), wol::power_on($1);
 471         } elsif ( $path =~ m!^/amt/(\w+)/$RE{net}{IPv4}{-keep}! ) {
 472                 my ( $run, $ip ) = ( $1, $2 );
 473                 print $client redirect( "$url/client/$ip" ), amt::RemoteControl( $ip, $run );
 474         } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
 475                 eval 'our $' . $1 . ' = ' . $2;
 476                 warn $@ if $@;
 477                 print $client redirect($url), qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
 478                 server::debug( $debug ) if $1 eq 'debug';
 479         } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
 480                 print $client redirect, daemons::start_stop($1,$param);
 481         } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
 482                 my ( $package, $method ) = ( $1, $2 );
 483                 $ENV{nr} = $1 if $package =~ s{\.(\d+)$}{};
 484                 $package->$method();
 485                 print $client redirect;
 486         } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
 487                 print $client redirect;
 488                 kill 1, $1 || kill 9, $2 && warn "killed $1";
 489         } else {
 490                 print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
 491                 warn "404 $path";
 492         }
 493
 494 }
 495
 496 sub start {
 497
 498         warn 'network ', network::setup();
 499
 500         daemons::start_stop 'browser', { url => $url };
 501         daemons::start_stop $_ foreach ( qw/dhcpd tftpd dnsd syslogd/ );
 502 #       daemons::start_stop 'kvm' unless $ENV{DEV}; # skip kvm statup when running on real device
 503
 504         my $server = IO::Socket::INET->new(
 505                         Proto     => 'tcp',
 506 #                       LocalAddr => $server::ip,
 507                         LocalPort => $httpd::port,
 508                         Listen    => SOMAXCONN,
 509                         Reuse     => 1
 510         ) || die "can't start server on $url: $!";
 511
 512         print "url $url\n";
 513
 514         syslogd::install_local;
 515         client::rebuild_mac_links;
 516
 517         while (1) {
 518                 my $client = $server->accept() || next; # ALARM trickle us
 519                 my $request = <$client>;
 520
 521                 my $headers;
 522
 523                 while ( my $header = <$client> ) {
 524                         chomp $header;
 525                         last if $header =~ m{^\s*$};
 526                         my ( $n, $v ) = split(/:\s*/, $header);
 527                         $headers->{ lc $n } = $v;
 528                 }
 529
 530                 if ( my $host = $headers->{host} ) {
 531                         $url = 'http://' . $host;
 532                         $url .= ":$port" unless $url =~ m{:\d+$};
 533                 }
 534
 535                 warn "## $url ## $request", dump( $headers ) if $debug;
 536
 537                 if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
 538                         my $path = $1;
 539                         $path =~ s/%([0-9A-Fa-f]{2})/chr(hex($1))/ge;
 540                         my $param;
 541                         if ( $path =~ s{\?(.+)}{} ) {
 542                                 foreach my $p ( split(/[&;]/, $1) ) {
 543                                         my ($n,$v) = split(/=/, $p, 2);
 544                                         $param->{$n} = $v;
 545                                 }
 546                                 warn "param: ",dump( $param ) if $debug;
 547                         }
 548                         get_request $client, $path, $param;
 549                 } else {
 550                         print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
 551                         warn "500 $request";
 552                 }
 553
 554                 print $client menu() . html_end() if $client->connected;
 555
 556         }
 557
 558         die "server died";
 559 }
 560
 561 warn "loaded";
 562
 563 1;